Z with hook

Z with hook (majuscule: Ȥ, minuscule: ȥ) is an additional letter of the Latin script.

The Unicode standard notes "Middle High German" for the application of the grapheme, intended to represent the coronal fricative /s/ also transcribed as tailed z ⟨ʒ⟩. The ⟨ȥ⟩-character is used in modern printings of Medieval German literature to indicate those cases of ⟨z⟩ pronounced as [s] (in such a case, modern German now uses ⟨s⟩). In contrast, the ⟨z⟩-character is pronounced as /ts/, as is still the case in modern German.^[1] And the ⟨s⟩-character is pronounced as /z/.

• 
  ⟨z⟩ and ⟨ȥ⟩ in Schade (1868).
• 
  "sameȥ-, samȥ-tac" in von Lexer (1876).
• 
  Italic ⟨z⟩ and ⟨ȥ⟩ (appearing nearly identical to ⟨ʒ⟩) in Paul (1918).